Improving the Sphere-Packing Bound for Binary Codes over Memoryless Symmetric Channels

preprint2010arXivOpen access

Abstract

A lower bound on the minimum required code length of binary codes is obtained. The bound is obtained based on observing a close relation between the Ulam's liar game and channel coding. In fact, Spencer's optimal solution to the game is used to derive this new bound which improves the famous Sphere-Packing Bound.

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